Which muscle dorsiflexes the ankle?

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Study for the Muscle Actions and Functions – Anatomy and Movement Test. Equip yourself with multiple choice questions, each with detailed explanations and hints. Prepare confidently for your exam!

Multiple Choice

Which muscle dorsiflexes the ankle?

Explanation:
Dorsiflexion of the ankle is lifting the front of the foot toward the shin. The best answer is the tibialis anterior, a muscle on the front of the lower leg that runs to the top of the foot. When it contracts, it pulls the foot upward and also helps invert it, making it the primary mover for dorsiflexion. Gastrocnemius and soleus are the calf muscles that plantarflex the ankle—pointing the toes downward. Extensor digitorum longus can assist in dorsiflexion, but its main function is extending the toes, not driving ankle dorsiflexion as strongly as tibialis anterior.

Dorsiflexion of the ankle is lifting the front of the foot toward the shin. The best answer is the tibialis anterior, a muscle on the front of the lower leg that runs to the top of the foot. When it contracts, it pulls the foot upward and also helps invert it, making it the primary mover for dorsiflexion.

Gastrocnemius and soleus are the calf muscles that plantarflex the ankle—pointing the toes downward. Extensor digitorum longus can assist in dorsiflexion, but its main function is extending the toes, not driving ankle dorsiflexion as strongly as tibialis anterior.

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